I what to know if there is anyone that's had a bad experience with sharing too much information with provider?

What do you have to lose?  Are you an employee or the owner. I've given up personal & business info about myself, but it's always after I've know the provider awhile and she's shared personal info about herself.  

...without knowing the gal or her history. There are all kinds of horror stories, but I believe they are the exception. Based on your review history, I suspect you are fine. There really isn't anything you can do about it now. Just chalk it up to a learning experience and be more cautious in the future.  

And did she know?

First there no more privacy...everything you  publish on internet you can consider   is public...information  someone has your real name...  you Google you  can get   al  kinds information..  
And  to some providers.... to pass their screening They request  your fuII name and work information
WHY are you  worry about the business card?  
what is in there? that she might already knows.. to late worry..unless you have some issues that you did not  explain ..

I have a few from Lawyers & IT guys They left them in case I ever needed there profesional services.

We've received a few business cards over our tenure however for us, and for most providers we contact clients only as a way to reply to their initial enquiry. Provided the WL you handed your card to was a reputable one, we can't see you having any problems.

classy provider will take it and put it away and respect you!

I have quite a bit to lose...thank you for your kind words and advice.

Well said,  I did give it to her because I felt that she would not do harm to me, it was a gesture to extend to her and family just in case I would be of help.  Thanks for your input.